Tips for getting the Better off Dead achievement?

I legit feel ragebaited trying to get the better off dead achievement, because I'll be doing good with over a thousand sun, then get the worst lawn possibe. My highest streak so far in I Zombie is 8.

Also I think there's a bug as well with the miner zombies and chomper plants, because if I get a lawn where I have a chomper plant close to the house and I send a miner down there, the chomper plant eats him, but for any other chomper plants not near the house I can have a miner zombie eat them just fine without them getting eaten.